Hi Paul,
Welcome to the forum, as kid curry has said any base will do they are all very similar but for starting out I would recommend the Bruce Edwards:
https://curry-recipes.co.uk/curry/index.php?topic=2815.0
I tend to make batch of sauce and leave enough in the fridge that will be used up within a week then freeze the rest in curry sized amounts.
Welcome to the forum, as kid curry has said any base will do they are all very similar but for starting out I would recommend the Bruce Edwards:
https://curry-recipes.co.uk/curry/index.php?topic=2815.0
I tend to make batch of sauce and leave enough in the fridge that will be used up within a week then freeze the rest in curry sized amounts.

